Article including a heat-stable coating provided with an at least two-color decoration having continuous tones

Abstract

A heating article includes a substrate having two opposite surfaces, at least one of which is opaque, and a heat-stable coating arranged on the opaque surface. The heat-stable coating includes an at least two-color decoration having continuous tones and being provided in the form of a continuous or discontinuous layer.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 13 / 996,792 filed Dec. 22, 2011, which is the United States national phase of International Application No. PCT / FR2011 / 053151 filed Dec. 22, 2011, which claims priority to French Patent Application No. 1061218 filed Dec. 23, 2010, the disclosures of which are hereby incorporated in their entirety by reference.FIELD OF THE INVENTION[0002]The present invention relates to an article comprising a heat-stable coating provided with an at least two-color decoration and method for manufacturing such an article. The present invention also relates to a method for manufacturing such articles, wherein the decoration is applied by ink jet printing.DESCRIPTION OF RELATED ART[0003]Several types of techniques are known for decorating a culinary article.[0004]Particularly, it is known by the skilled person to use screen printing or tamp print techniques in order to apply patterns on fla...

AI Technical Summary

Benefits of technology

The patent text describes a method for applying a decoration to a heating article by ink jet printing. The invention solves the issue of needing an ink receiving layer by using a continuous opaque layer on the support or a sub-layer. The invention also provides a heat-stable coating that can be cured at high temperatures. The coating can contain a decoration in continuous tones, resulting in a continuous or discontinuous layer. The adhesion of the decoration to the support is ensured by the porosity of the support or the sub-layer, or by the use of a binder. The heating article can be used for heating or transmitting calorific energy to a third material or object. The invention also includes a finishing layer that is transparent and can be deposited on the decoration.

Problems solved by technology

Such a printing technique is only profitable when the same image or pattern is applied on a large number of supports.

For printing a small number of pieces, a screen print (or tamp print) in several colors is very expensive and is certainly not profitable in as far as a separate screen (or engraved print) is necessary for each base color.

Furthermore, the cost of making and cleaning of the printing screen is high, the time it takes to realize the screen is long thus, requiring flawless planning of the productions.

Furthermore, the change of tint although it is achieved in an identical style requires neat cleaning which reduces the production time.

According to the sublimation printing technique, the pattern initially printed on a support (paper of plastic film) is pressed flat against the surface of the article to be decorated, then the whole is briefly taken to a temperature between 150° and 210° C. The traditional sublimation printing is only used on flat-shaped articles because the pressure of the support on an article of non-flat shape results in its creasing and consequently results in printing flaws.

However, such improvements make printing methods by sublimation very complex to implement and hardly productive.

Thereby, it is not possible to print decorations according to the ink jet technique by using standard inks such as used in paper or textile printing.

However, with such conditions of implementation, it is not to be considered to achieve a coating comprising an organic ink receiving layer, a decoration layer obtained by ink jet printing and a fluorocarbon resin based or vitrified sintered protective coating layer (in the case of an enamel).

), the organic components of the receiver layer become degraded and are trapped by the finishing layer, thus causing a tanning of the coating and hides the patterns.

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